﻿using System;
using System.Collections.Generic;
using System.Text;

namespace A_B
{
    class Program
    {
        static void Main(string[] args)
        {
            TermData t1 = TermData.Read();
            TermData t2 = TermData.Read();
            Console.WriteLine(t1 + t2);//使用重载完成加法运算
            Console.WriteLine(t1 - t2);
        }
    }
}
